The document discusses the concept of a stratellite, which is a high altitude airship stationed in the stratosphere rather than in orbit, that can provide wireless communication services. A stratellite carries payloads like broadband, mobile, and TV signals to a large area below using solar power and electric motors. It offers advantages over satellites like lower latency, lower launch costs, and the ability to service wide areas with traditional wireless technologies. However, stratellites remain a prototype technology that faces challenges from weather and potential traffic issues in the stratosphere.

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STRATELLITE
Presented by: JOSHWIN SEBASTIAN
Register No: 20201023
Guided by :
EC DEPARTMENT, GPTC KALAMASSERY

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CONTENTS
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o INTRODUCTION
o EXISTING TECH.(SATELLITE)
o STRATELLITE
o CONSTRUCTION AND WORKING
o STRATELLITES FROM SATELLITES
o SATELITE VS STRATELLITE
o ADVANTAGES & DISADVANTAGES
o REFRENCES
o CONCLUSION

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INTRODUCTION
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o Wireless communication is simply data
communication without the use of landlines. This may
involve cellular telephone, two -way radio, fixed
wireless (broadband wireless), laser (free space
optics) or satellite communication systems.
o Since from the beginning of wireless
communications, there have been a number of
developments in each generation. Considering the
future generation of wireless
communication L.e.: 5G.

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oStratelites provide the required facilities of wireless
communication more efficiently than the ordinary
towers.
o The Stratellite will allow subscribers to easily
communicate in 'both directions' using readily
available wireless technology.“
oThey minimise the cost of communication.
Stratellites present,low-cost,high capacity
alternative to satellite relays and cell towers
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EXISTING TECHNOLOGY(SATELLITE)
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• Satellite is an artificial object which has been intentionally placed into
higher orbits.
• Satellite communication is the backbone of wireless communications, and
global positioning systems.
• Satellite in orbit of the planet cover huge footprint territories
• Satellites come in 4 types:
I. Geo-stationary
II. Sun-synchronous
III. Geosynchronous
IV. Low-earth orbit

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STRATELLITE
• A stratellite is similar to a satellite, but is stationed in the
stratosphere rather than on the orbit.
• Stratellite is a "High Altitude Airship(HAA)", which is positioned
approximately 13 miles(20KM) above the earth, which
provides the benefits of a satellite like remote sensing,
navigation and communication.

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• Each Stratellite will have clear line-of-site
communications capability to an entire major -metropolitan
area as well as being able to provide coverage across
major rural areas.
• The Stratellite is designed to carry certain payloads into
the Stratosphere determined by the requirements of the
customer as.
• A single unit could send broadband, mobile phone and
digital television and radio signals to a large area. The
'unmanned' Stratellite would be powered by solar cells
and propelled by electric motors.

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CONSTRUCTION
Outer layer is made of
spectrais a fabric used in
bullet proof vest
• Filled with a mixture of
helium and air
CONSISTS OF
• Propeller
• Solar cells
• Regenerative fuel cells
• Helium gas bag
• Transponder
• Hybrid electric motors

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WORKING
Inside is filled with Helium gas, as it is inert gas not
flammable.
• The Helium gas expands pushing out air and lifting the
airship.
• Uses solar cells sprayed on their surface to generate
electricity.
• The generated electricity drives propellers that work with
GPS technology to keep the stratellite stationary.

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STRATELLITES FROM SATELLITES
• Sans wire Inc were the first to come up with the Stratellite. As the
name suggests, it is a satellite, in the stratosphere. Positioned 13
miles, or 20 kilometers above the surface of the earth, it has the
straight up-and-down communications advantages of any other
satellite, but reduces transmission times by a factor of nearly 2000 for
geostationary satellites, and 15 for low orbiting satellites.
• Using airship technology, a stratellite is above the cloud layers and so
can be powered by solar cells and propelled by electric motors which
are designed to keep the craft at a single, pre-programmed 3-axis
GPS co-ordinate, and check with higher satellites that it stays in that
position.

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• Launching costs are next to nothing, and at nearly 250 feet
long, they have enough lift for sophisticated computation
equipment - more than most conventional satellites
• Placing a communications platform into the stratosphere, in
the form of an airship, has never been done before. Such a
platform can fundamentally change how the world delivers
wireless telecommunications and the way we as individuals
communicate.

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STRATELLITES AND SATELLITES

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STRATELLITE VS SATELLITE

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ADVANTAGES
• D ecreases Signal lat ency
• Less expensive t o launch
• Service an area of 300,000 square - miles
• Tw o w ay high speed dat a communicat ion
• H igh speed broad - band a c c e s s e ve n in remot e area.
• For a country tw o stratellites are enoughinstead of
t housands of t ow ers

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• Stratellites will carry over 20,000 pounds of
radars and other remote imaging
equipment, navigational aids, and
telecommunications relays.
• Stratellites are planned to remain on station
for a year at a time and will cost a one fifth
as much as a comparable satellite

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DISADVANTAGES
• May lead to traffic problems in stratosphere.
• Would require efficient ground control and
maintenance.
• So far, this technology remains non-commercialized,
and is in a prototype stage for further developments.
• Unlike with a satellite, a stratellite is at the mercy
of the weather.

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CONCLUSION
• Probably the most "far out there" concept in this
roundup, Stratellite isactually much closer to reality
than what you may think.
• Once the defects of Stratellites have been overcome
and become morereliable, they play a vital role in
the future generation wireless communication.
• This is a promising technology that could combine
the best of Satelliteand wired Internet - fast with low
latency and hugely widespread, atleast in theory.

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REFERENCE
[1] Stratellites- A.Roja, S.Sai Udaya Keerthy,K. Krishna Keerthi, Dept. of ECE, G. Pullaiah
College of Engineering and Technology, Nandikotkur Road, Kurnool, Andhra Pradesh, India
[2] Tom Swift and his electrical airship - Hugh Blair-Smith, IEEE A&E systems magazine,
October 2011
[3] 21st Century Airships, Inc., High Altitude Platy http://www.21stcenturyairships.com/
Geostationary Orbits, in Wikipedia, at http://en.wikipedia.org/wiki/Geostationary_orbit
[4] TWUF, Broadband Takes to the Skiesrt,Tec dirt, Get Your Wireless Broadband By
Stratellite
[5] http://en.wikipedia.org/wiki/Stratellite
[6] https://youtu.be/mb9aOvPP_sw
[7] http://en.wikipedia.org/wiki/Geostationary_orbit

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Thanks for the
attention 
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